Our club had a 400 watt TPC that works intermittently. If it does work it stops after 1/2 to a couple of hours. Does anyone on the forum repair the TPC on a component level. Thanks Bruce brucefclark@Juno.com
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I believe that Dale Manquen was repairing them.
Originally Posted by brucefclark:
Our club had a 400 watt TPC that works intermittently. If it does work it stops after 1/2 to a couple of hours. Does anyone on the forum repair the TPC on a component level. Thanks Bruce brucefclark@Juno.com
Open up the case and take a look at the PC board traces to see if any of them are damaged. It is possible that after operating for a couple of hours the heat causes the trace to degrade. That might be the place to start.
Also, if you can't locate the problem and have Dale repair it for you once you get it back it would be recommended to install transient voltages suppressors on both in put and output especially if this TPC was produced in China. This is also true for any other the other control accessories.
Since Dale is no longer taking new projects are there any other repair persons out there. Or is sending it back to Lionel the only choice.
It's nice when the repair is an easy one, and even nicer when you can do it yourself. 
Wow, from the circuitry I have dealt with I have never seen this happen. I guess our stuff was built better than I imagined!
I just fixed an R2LC for someone that had the smoke triac desolder itself and drop out. He had a 6 ohm resistor in the smoke unit, a little too much current for the triac. I was amazed there was no other damage, a new triac and it was as good as new.
